타이틀바 없이 window move

OnLButtonDown(UINT nFlags, CPoint point)
{
	PostMessage(WM_NCLBUTTONDOWN, HTCAPTION, MAKELPARAM(point.x,point.y);

	CDialog::OnLButtonDown(nFlags, point);
} 

// reference

OnNcLButtonDown
http://msdn.microsoft.com/ko-kr/library/3zk2b0e3(v=VS.80).aspx